Four arrested after 100 gatecrashers descend on party in Dawesville

Robyn Preston

An eighteenth birthday party ended with gatecrashers on the roof, criminal damage and four youths arrested when up to 100 uninvited guests descended on the Dawesville home following an invite on Facebook.

Police say the party's host had left the Caddadup Retreat house at 6pm on Saturday and returned three hours later to find gatecrashers on the roof and others causing damage to the property.

The first police vehicle to arrive was hit with bottles and had its windscreen broken.

Extra resources were called to bring the partygoers under control, including two horse-mounted units.

A spokesman said police were required to form ranks to move the group on.

Four youths were arrested and taken to Mandurah Police Station where they were later cautioned and released.